hammond



July 13 1926.

F. HAMMOND LIQUID IBASURING AND DISPENSING APPARATUS Original 11 Jan. 15. 1921 2 Shoots-Shut 1 July 13 1926.

F. HAMMOND LIQUID IBASURING AND DISPENSING vAPPARATUS Original Filed Jan. 15. 1921 2 Sheets-Sheet 2 an'tsento'z 8% WWW Reimed July 13. 1926.

. UNITED STATES Re.16,38 l. PATENT OFFICE.

FRANK HAMMOND, OF LONDON, ENGLAND.

LIQUID KEASUBING AND DISPENSING APPARATUS.

Original at. 1,445,218,6ated February 13, 1928, Serial No. 437,421, iiled January 15, 1921, and in Great Britain December 15, 1819. Application for reissue filled February 10, 1925. Serial llo. 8,242.

This invention has reference'to liquid measuring and dispensing apparatus and has been devised with the object of effectively locln'ng and unlocking the inlet and outlet l pipes as required, ensuring accurate measurement an delivery of the volume of liquid measured, and preventing accidental withdrawal of liquid from the measuring bowl. The invention consists in means whereby 10 the handles controIling the inlet and outlet pipes are so coupled that when the former is open the latter is closed and vice versa. This may be efiected by mean's of toothed quadrants in such a manner that the liquid may pass-into the. measurin bowl and the volume measured before discharge of the litkulid therefrom.

cases where the measuring means co'mrises a tube adjustable as to height in the '20 W1, which tube is adapted to be raised or lowered by a handle or handles capable of being locked in horizontal slots branching .from a vertical slot or slots in a sleeve, it has been found that there is a possibility of 2B the handle or handles dropping down the vertical slots when at the neutral or midway position with possible escape back to the storage tank of the li uid in the measuring bowl. To obviate t is I provide an 80 inner locking sleeve having a vertical slot (or o posed vertical slots) which is or. are provi ed with horizontal slotson one side only so that whenthe handle is brought to the neutral position the inner locking sleeve as prevents it dropping or rising from its set ition.

The, controlled inlet pipe or passage from the storage tank is brought inside or adjacent the measurin bowl and is formed with m an inverted U ben having a discharge opening at the bottom of the bowl, and in order to prevent a siphonage of the liquid back to {go sank I make an air vent at the top of the 46 A disc, referably concave is provided on the end o the adjustable tube to avoid formation of a meniscus on the surface of the liquid and I may secure vertical radial fins thereon whereby an swirling of the liquid 50 is more-rapidly chec ed.

I will now refer to the two sheets of drawings herewith in order that the invention ma' be more readily comprehended.

1 re 1 is an elevation of the operating I and ocking and graduated sleeves.

Fi re 2 is p. part elevation of the operatm s eeve.

igure 3 is a section on line AA Figure 1. Figures 4 and 5 are part elevations show- 00 mg the operatinghandle in the" locked and discharge positions respectively. F1g. 6 is a perspective view ofthe assembled sleeves, the graduating sleeve being broken away to show the locking sleeve."

Figure 7 is a partial sectional elevation of the measuring chamber. Fig. 7 is a detail illustration of the measuring chamber, showing the inverted U-inlet 12.

Figure 8 is a section on line B-B Figure 7.

Figure 9 is an elevation partly in section of an apparatus provided with my improvements.

Fig. 10 is a detail sectional view of one of the valves. t Fig. 11 is a detail top plan view of the same.

.The same numerals indicate the same or corres nding parts. l

10 1s the measuring chamber provided with two or more transparent view portions or'insets 11 graduated according to the capacity measures desired. 12 is an inverted U inlet pipe in communication with a pump or gravity supply tank containing the li uid and delivering through a passage 13. a jacent the bottom of the chamber which is preferably inclined towards the discharge outlet 14. 15 represents the operating sleeve, 16 thelocking sleeve and 17 the outermost or graduated sleeve marked with capacity indications corresponding to those viewed through or on the transparent portions 11. 95

' The operating sleeve 15 has secured thereto the circular plate 20 on which are oppositely positioned the quadrant racks 21 and 22 the former of which is inengagement with the pinion -23 controllingthe valve 24 on the supply pipe 25 in communication with the'pipe 12, while the rack 22 is in engagement with the pinion 26controlling the delivery valve 27 on the discharge pipe 28 in communication with the outlet 14. The valves 24, 27 are alike in construction, and hence I only show oneof them in detail in Figs. 10 and 11.

The operating handles 29 and 30 are secured on the vertically slidable overflow tube 31 on which, within the chamber, is'the disc 32 preferably concave andhaving on its upper face the radial fins or baflles 33.

, 16 is the vertical slot 36 from which branch from one side thereof the horizontal slots 37. The operating sleeve 15 has the vertical slot 38. The opposite side of the apparatus is similarly slotted except that the horizontal slots in the sleeve 16 extend in the same circumferential direction from'each vertical slot 36. Adjacent the bend of the pipe 12 is an air hole 39 in communication with the top of the chamber, to prevent an air lock.

The operation of the apparatus is as follows: The handles 29 and 30 are raised in the vertical slots 34, 36, and 38 on opposite sides to the required height as indicated on the graduated sleeve 17 and are then turned 1 into the horizontal slots on the right.

This movement carries the operating sleeve 15 round and consequently the plate 20 and racks 21 and 22. These racks rotate the pinions '23 and 26, thereby simultaneously opening the supply valve 24 and closing the delivery valve 27. The handles also carry the locking sleeve 16 across with it, thereby locking them as shown in Figure 5. The vertical slot 36 is now out of registry with the slot 34. When the liquid rises in the chamber to the predetermined height,

each handle is carried across to the .dis-

charge side as shown in Figure 4 thereby closing the valve 24 and opening the discharge valve 27 whereupon the liquid flows through the the opening 14 and delivery pipe to the nozzle 28. During this movement, the handle first moves along the slot 37 to the ends thereof, but when at the slot 34 it cannot be raised or lowered. The further movement of the handle into the left slots 35 rotates the sleeve 16 to bring the slot 36 into registry with the slot 34. The sleeve 16 thus acts to lock and unlock the handle. The handle cannot be raised or lowered after moving to filling position and before bein moved to emptying position. When the liquid has been delivered and the chamber 10 isempty, the handles are returned to the neutral position, the sleeves 15 and 16 with their vertical slots 38 and 36 respectively being then in alignment with the vertical slot 34 in the graduated sleeve.

It is obvious that instead of two oppositely positioned handles the apparatus may be operated by one; but two handles, each capable of being moved in corresponding slots, ensure certainty and balance of movement.

Having thus described my invention, what I claim as new and desire to protect by Letters Patent is 1. In a liquid measuring and dispensing apparatus, the combination of a measuring chamber, a supply duct leading thereto, a discharge duct leading therefrom, valves in said ducts, a slidable vertically disposed overflow tube having an operating handle, and a plurality of concentric sleeves encircling said overflow tube, one of said sleeves serving as an operating member for said valves, another of said sleeves serving as a graduating sleeve to control positionings of said handle for different measured quantities in said chamber, and another of said sleeves serving as a locking member to prevent vertical adjustment of said tube after opening of the valve of the supply duct, and

gefore opening the valve of said discharge net.

2. In a liquid measuring and dispensing apparatus as claimed inclaim 1, the concentric sleeves each provided with a vertical slot, the locking sleeve havingbranch horizontal slots on one side of its vertical slot, and the graduated sleeve having horizontal slots on both sides of its vertical slot said olperating handle extending through said s ots.

3. In liquid measuring and dispensing apparatus, a vertically slidable overflow tube carrying a disc within the measuring chamber, said disc having two or more radial fins or baflles on its upper surface for the purpose of checking any swirling of the liquid above the disk.

4. In a liquid measuring and dispensing apparatus the combination of a measuring,

tions, and said locking member havin means for preventing vertical movement 0 said handle after closing of the valve of the supply pipe, and before opening of the valve of the discharge pipe.

5. A liquid measuring and dispensing ap paratus having a measuring chamber, supply and discharge pipes leading thereto, valves in said pipes, a vertically slidable overflow tube having an operatin handle; three juxtaposed members each rovtided with a vertical slot through which said handle extends, one member being laterally movable to operate said valves upon lateral movement of the handle, another of said members being held against lateral movement and having laterally extending slots n opposite sides'theneof, and the other having laterally extending s ots upon one two juxta side only of the vertical slot.

6. A liquid measuring and dispensing apparatus having a' measurin chamber, supply and discharge pipes eading thereto, valves in said pipes, a vertically slidable overflow tube having an operating handle, two juxtaposed members each having a vertical slot through which said handle ex-v tends, one of said members being laterally movable to operate said valves .upon the lateral movement of the handle, and the other of said members being-held against lateral movement and havin a set of lateral slots upon one side for receiving the handle during the operation of the supply valve,

and a second set of lateral slots upon the other side to receivethe .handle durmgthe operation of the discharge valve, and means for preventing vertical movement of the handle in said vertical slots after movement out of one of said first mentioned set of slots, and until after movement into and out of one of said second mentioned set of slots.

7. A liquid measuring and dispensing apparatus having: measurin chamber, supply and disc ge pipes leading thereto, valves in said p1pes,a vertically slidable overflowtube ha an operating handle,

sed mem rs each having a .vertical slot t rough which said handle extends, one of said members being laterally movable to operate said valves upon the lateral movement of the handle, and the other of said members he held against lateral movement and havin a set of lateral slots upon one side for receiving the handle during the operation of the supply valve, and a second I set of lateral slots u on the other 'side to reoeive the handle during the operation of the discharge valve, and means for preventing vertical movement of said tube after closing p the supply valve, and before opening the discharge valve.

8. A liquid measuring and dispensing apparatus having a measuring chamber, supply and discharge pipes leading thereto, valves in said plpes, a vertically slidable overflow tube havin an operating handle, two juxtaposed mem ers each having a vertical slot through which said handle extends, one of said members being laterally movable to operate said valves upon the lateral movement of the handle, and the other of said members bein held against lateral movement and having a set of lateral slots upon one side for receiving the handle during the operation of the supply valve,'and a second set of lateral slots upon the other side to receive the handle during the o eration of the discharge valve, and a latera l movable locking member having a vertioa slot and lateral slots upon one side only thereof for.

greventing vertical movement of the overow tubeafter closing the supply pipe and before opening'thedisch'arge 1pc. 9. A liquid measuring and gispensing apparatus having a measurin chamber, supply and discharge pipes eading thereto,

' valves in said pipes, a vertically slidable overflowtube having an operatlng handle, connections between said handle and said valves for opening the valve of the supply pipe upon movement of the handle in one direction from a mean position and opening the valve of the discharge pipe upon-movement of said handle in the opposite direction from said mean position, means for supporting said handle and tube in predetermined positions corresponding to predetermined volumes in said chamber determined by the elevation of said overflow tube,

and locking means for preventing vertical movement of the tube and handle after movement of the handle in one directionjto open the valve of the supply ipe and before movement of the handle in t e opposite direction to open the valve of the discharge gigned at London, England, this 28th day of; January, 1925.

FRANK HAMMOND. 

